The NIC or miniport driver should recompute the TCP and IPv4 checksums, if applicable, before indicating the coalesced segment. Note Because segments with IPv6 extension headers cannot be coalesced (see Exception Conditions that Terminate Coalescing), the size of the SCU for IPv6 datagrams is also limited by the maximum legal datagram length. Look like a normal TCP segment that is received over the wire.īe no larger than the maximum legal IP datagram length, as defined in section 3.1 of RFC 791. This section describes how to indicate the resulting coalesced segments.īe indicated by calling NdisMIndicateReceiveNetBufferLists. ![]() ![]() A single coalesced unit (SCU) is a sequence of TCP segments that are coalesced into a single TCP segment according to the rules defined in Rules for Coalescing TCP/IP Segments.
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